<iframe width='500px' height='400px' src='https://nest.ktbyte.com/nest#357561' allowfullscreen></iframe>

//Global Variables
int x;
int y;

void setup(){
    size(500,500);
    
    
    background(0,0,0);
    textSize(80);
    textAlign(CENTER,CENTER);
    fill(255);
    text("click and drag", 250, 250);
}

void draw(){
    if(frameCount == 60){
        background(0);
    }
    
    int x = mouseX;
    int y = mouseY;
    
    
    stroke(x/2,y/2,700 - x - y);
    strokeWeight(4);
    if(mousePressed){
        line(x,y,pmouseX,pmouseY);
    }
}